package com.cy;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.loadbalancer.LoadBalancerClient;
import org.springframework.context.annotation.Bean;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@SpringBootApplication
public class NacosConsumerApplication {
    public static void main(String[] args) {
        SpringApplication.run(NacosConsumerApplication.class,args);
    }
    @Bean
    public RestTemplate restTemplate(){
        return new RestTemplate();
    }

    @RestController
    public class ConsumerController{
        @Value("${spring.application.name}")
        private String appName;

        @Autowired
        private LoadBalancerClient loadBalancerClient;

        @Autowired
        private RestTemplate restTemplate;

        @GetMapping("/consumer/doRestEcho")
        public String doRestEcho(){
            ServiceInstance serviceInstance =
                    loadBalancerClient.choose("nacos-provider");
            String host= serviceInstance.getHost();
            int port =serviceInstance.getPort();
            String url = String.format("http://%s:%s/provider/echo/%s",
                    serviceInstance.getHost(),
                    serviceInstance.getPort(),
                    appName);
//            String url= "http://"+host+port+"/provider/echo/"+appName;
//            return url;


//            String url = "http://localhost:8081/provider/echo/"+appName;
            System.out.println("request url:"+url);
            return restTemplate.getForObject(url,String.class);
        }
    }
}
